Strip-covering machine.



l. D. REIFSNYDER.

STRIP COVERING MACHINE.

APPLICATION mm MAY 8. 1913.

\1 ,21 5,1 95. k 12: entod 1 b. u, 101? SHEETS-SHEET I I? no; 1 do a wi tmeo oeo J. 'D. REIFSNYDER.

STRIP COVERING MACHINE.

A-PPLICATIUN men MAY 9.1913.

1,215,195. Patentud Feb. 6, 1517.

3 SHEETSSHEET 3- UNITED STATES PATENT OFFICE.

JAMES D. REIFSNYDEB, 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNUR TO STOKES &

SMITH COMPANY, OF SUMMERDALE, PENNSYLVANIA, A CORPORA DION OF PENN- SYLVANIA.

STRIP-COVERING MACHINE.

Patented Feb. 6, 1917.

Application filed May 8, 1913. Serial No. 766,433.

To all whom it may concern:

Be it known that I, JAMES D. REIFSNYDER, a citizen of the United States, residing at Philadelphia, in the State of Pennsylvania, have invented new and useful Improvements in Strip-Covering Machines, of which the following is a specification.

This invention relates to means for cover ing or applying a finishing sheet or facing strip to more bulky body strips of paper board, and has for its object to provide a simple, compact machine, for this purpose to which long strips of paper board are fed upon a continuous web of covering material, such as paper, cloth, or other thin substance, coated on the contacting side with an adhesive and subjected to a pressure that will cause the two strips to adhere closely.

The covering strip is preferably wider than the strip of paper board over the edges of which the projecting edges of the covering strip are folded by suitable devices and if desired the finish strip is longitudinally divided as it passes from the machine.

\Vith this as the principal object in view, the invention consists of the novel combination and cooperation of the several parts as hereinafter described in detail and illustrated in the accompanying drawings, in which- Figure 1 is a plan view of the machine.

Fig. 2 is a vertical longitudinal sectional view on the line 2-2 of Fig. 1.

Fig. 3 is an enlarged cross sectional view on the line 3-3 of the same figure.

Fig. 4 is a detail view of a portion of a strip of paper board superposed on a covering strip, the latter being folded in part over the edges of the paper board.

In the drawings 10 indicatesa horizontal bed plate supported on legs 11 rising from the floor, on one end of which bed plate are brackets 12 that support a horizontal feed table 13 over which the material to be covcred is'fed. Inserted in the table 13 flush with its top is a plate 14 through which are formed two elongated slots 15 extending transversely of the table and above a groove 16 in said table to receive the heads of bolts or pins,.17 that project upwardly through said slots and through guide rails 18 which direct the movement and position of the.

material A to be covered. Thumb nuts 19 are screwed on the bolts or pins 17 to secure the rails to the table 13 and when loosened, said rails may be moved ';oward or from each other to regulate tlu space therebetween to the width of the material or body strip A.

Adjacent the edge of tlie table 13 that overlies the bed plate 10a1e two feed rolls 20, 21 mounted in bearings Lt each end supported in pillow blocks 22 n the bed plate. The bearings of the lower roll 20 are fixed to hold the top of the roll in line with the top of the table 13, the bearings of the upper roll 21 are vertically movable in the pillow blocks,the movement being regulated byadjnsting screws 23. Springs 24 above these bearings press the upper roll against the lower one with a yieldiagforce.

Below the bed. plate 10 is a transverse bar 25 fixed to the legs 11 on which bar is supported a fountain 26 containing a liquid adhesive into which the under side of an applying roller 27 dips, said roller or wallower being journaled on the edge of the fountain as shown. A blade 28 is screwed -to the edge of the fountain and is adjustable clamp bearings 31 which or being loosened,

permit the rod to turn. Two arms 32 project radially from the rod 3) between which extends asmall rod 33 as represented in Fig. 2.

Supported in a trough 34 carried by the legs 11 at the delivery end of the machine is a roll of covering material :3 which may be thin paper, a textile or any other article su itable for the purpose. The web of material B passes from the roll to tl' e rod 29, under said rod, over the adhesive applying roller 27 and then under rod 3H, over rod 33, around guide rollers 35 and up to the feed rolls 20, 21, passing with tie strip A to be covered, between said rolls. Preferably, the covering material or facing atrip B is wider than the strip to be covered: 0 that the edges 7) which project beyond the edges of the "strip A may be turned over said latter edges as at b Fig. 4, by means now to be described. As the strip A is stiff, the flexible strip B folds readily about its edge as a fixed axis.

A short distance from the feed rolls 20,

against said bracket and the folding roller as clearly shown in Fig. 3. The spring 42 enables the roller 37 to move in and out to allow for variations in width of the stiff strip. The other roller 36 however is fixed against lateral shiftin on its block and forms a positive guide or the other edge of the strip. The first folding rollers 36, 37 preferably have each a eylindrical' hub 43 upon the periphery of which the side edges of the covered strips A aresupported, as they pass through the machine. On the outer end of each hub 43 is a peripheral flange 44 having a rounded outer corner 45, by means of which flanges the projecting edges b of the covering strip B are given the1r first turn or fold which bends them around the side edges of the strip A as a fixed axis into a position at right angles to the strip A.

The first folding rollers 36 and 37 are preferably arranged to rotate on horizontal axes disposed at right angles to the path of movement of the strips. These rollers simply have the function of bendin up the overlapping edge of the facing strip so that it projects substantially at right angles to the plane of the body strip.

After passing the first folding rollers, the strip A engages the second folding rollers 46, 47. These rollers are disk-shaped and with plane inner faces 46 and 47 are mounted to turn each on a downwardly and inwardlv inclined shaft, said shafts being supported by brackets 48, 49. As thus mounted the upper portions of the rollers project beyond the plane in which the strip is guided and overhang or over-ride the strip A so that they serve to inititate the inward folding of the uptruned edges 1) of the cover strip B beyond the right angle position. The edges of the strip A are preferably supported on the upper side of tapered studs 50 projecting from the inner plane faces of the rollers 46, 47, the peripheries of the studs Y being tapered at such an angle to the faces j of the rollers as to present a horizontal support for each edge of the strip., An arm 51 projects from each bracket 48, 49 behind the folding rollers togive support each to a cylindrical roller 52 turning on a vertical axis to aline and guide the strips to the final folding roll 53. 1

Following the alining rollers 52 is the cylindrical roll 53 for finally folding the edges 7) of the cover strip against the strip A. The roll 53 is journaled in a horizontal position in open bearings formed on two upright cheek plates 56 rising from the bed plate 10 and which are also provided with bearings for two coacting presser rolls 54, 55 between which the strip passes after leaving the roll 53 and by which the covering strip and its folded over edges 1) are pressed smoothly against .the strip A. These rolls also assist in feeding the material through the machine. One of the rolls 54, 55 preferably the upper roll 54, is mounted in yielding bearings, as shown.

The brackets 40, 48 which support respectively, one of the first and one of the second folding rollers are mounted on a block 57 movable transversely of the bed plate in guides 58 screwed thereon. A similar block 59 slidable in guides 60 carry the brackets 41, 49 of the companion folding rollers.

From each block 57, 59 there depends throu h a transverse slot in the table-a lug, said ugs 61, 62 each having a threaded opening therethrough for the threaded ends 63, 64 of a rod 65, one of said threads being right handed and the other left handed. A hand crank 66 on one end of the rod 65 enables the latter to be rotated and move the blocks to and from each other for adjusting the distance between the folding rollers.

The lower delivery feed roll 55 is mounted on a shaft 67 projecting beyond the bearings in the cheek plates-56 and has on one end a belt pulley68 turning freely thereon and which may be connected to the shaft for rotating'said shaft by a sliding clutch 69 of familiar construction operated by a lever 70 and connection rod 71. The opposite end of the shaft 67 is provided with a hand wheel 72 for manual operation, and a bevel gear wheel 73 meshin with a like gear wheel 74 on a horizonta shaft 75, the opposite endof which carries a bevel gear wheel 76 engaging a bevel gear wheel 77 on the shaft of the lower feed roll 20. Intermeshing gear wheels on the shafts of the upper and lower feed rolls are provided as usual to rotate the upper rolls.

Between the feed rolls 20, 21 and the first folding rollers is a table 78 serving as a support for the strips as they pass. A similar table 79 is placed between the first and second folding rollers. From the center of the table 79 to the delivery feed rolls 54, 55, there is a narrow supporting plate 80 which prevents the strips sagging as they travel to said feed rolls. fold-ing roll 53 rests by gravity, being raised in its open bearings by the passing strip. The moving strip is prevented from rising or buckling upwardly by rollers 81, 82, the former turning on a fixed shaft 83 having flattened ends carried in the forked upper Upon the plate 80 the final.

adjustable collar 87, on one side bearing against the yoke, and a collar 88 and spring 89 on the other side, the ends of the spring being connected tosaid collar 88 and yoke respectively The tension of the spring 89 holds the roller 82, turning in the free forked ends 90 of the arm 85, against the passing strip. The adjustability of the collars 87 and 88 permit the rollers 81 and 82 to be moved so as to bear on the center or any other desired portion of the strip.

After passing between the delivery feed rolls 54, 55, the finished strip is delivered upon a table 91 held by arms 92 projecting from the cheek plates 56 unless the covered strip is to be longitudinally cut into two pieces, in which case it passes between a horizontal roll 93 and a rotary knife 94. The roll 93 is journaled in the cheek plates 56 and has a gear wheel 95 on one end driven by a pinion 96 in mesh with a gear wheel on the shaft 67 of the lower delivery feed roll. The rotary knife 94 is mounted on a. shaft turning in arms 97 each pivoted at one end on a bracket 98 removably fastened on a bar 99 extending between the cheek plates. The blocks 98 have each a notch 100 formed inits top with inclined sides, one of which engages with a beveled edge on the bar 99 and is locked therewith by a screw bolt 101 in the block pressing a plate 102 against the opposite edge of said bar. The free end of each arm 97 enters a notch 103 in the under side of the block on which it is pivoted and is adjusted relatively to the roll 93 by thumb screws 104. Byloosening the bolts 101 the blocks and rotary knife may be entirely removed, or moved to any position over the strip that it is desired to cut.

The folding rollers all lie about on a level with the tables 78 and 79. The rollers 36 and 37 lie opposite the space between the tables so that when adjusted for different widths of strips they may move inor out in this space. The other rollers 46, 47 and 52 are beyond the table 79 and when the blocks are adjusted they approach or recede from the narrow supporting plate '80.

What I claim is 1. In a machine for attaching paper, strips together in combination. means for feeding a stiff body strip longitudinally forward, means for feeding a facing strip wider than the body strip longitudinally forward. lying flat against the said body strip and with an adhesive between said strips. a folding roller on each side for positively guiding the body strip and for bending up the side edges of said facing strip on the edges of said body strip as a fixed aids into a plane substantially at right angles to the plane in which said strips are guided, means for engaging said stiff body strip at a point in the space between the said rollers and removed from the bent side edges of the facing strip for holding said stiff body strip when said first named rollers are bending up the side edges of said facing strip, means for further bending the side edges of the facing strip from the said right angle pc sition into a position inclining inwardly fr )m the edge of the body strip, and means for forcing the side edges of the said facing strip from the said inclined position flatly down upon the body strip.

2. In a machine for 2 ttaching paper strips together in combination, means for feeding a stiff body strip longitudinally forward, means for feeding a fa ling strip wider than the body strip longitucinally forward lying flat against the said bc dy strip and with an adhesive between said strips, a folding roller on each side for positively guiding the body strip and for bending up the side edges of said facing strip on tlie edges of said body strip as a fixed axis into a plane substantially at right angles to the plane in which said strips are guided, a roller in the space between said first named rollers for engaging said stiff body strip at a point removed from the hen; side edges of the facing strip for holding said stiff body strip when said first named rollers are bending up the side edges of said f icing strip, means for further bending the side edges of the facing strip from the said right angle positioninto a position inclining inwardly from the edge of the body strip, and means for forcing the side edges of said facing strip from the said inclined position flatly down upon the body strip.

3. In a machine for attaching paper strips together, in combination, means for feeding a stiff body strip 10! gitudinally forward, means for feeding a facing strip wider than the body strip longitudinally forward lying flat against the said body strip and with an adhesive between said strips, a feeding roller on each side for positively guiding the body strip and for bending up the side edges of said facing strip on the edges of said body strip as a fixed axis me a plane substantially at right angles 10 the plane in which said strips are guided, a guide roller for engaging said stiff bo ly strip between said first named rollers and holding said strip in place when said first named rollers are bending up the side edges of said facing strip, a

air of axially inclineil rollers disposed adacent the edges of the facing strip beyond said first named roller: L, said axially inclined rollers having substantially plane faces disposed at substantially right angles to the axes of the rollers at d adapted to engage the edges of the facing strip to fold the same farther inu 'ardly, and means for forcing the inwardly folced edges down liatly upon the body strip.

4. In a machine of the class dcscrihcd in combination, means for feeding longitudinally forward a body strip with a facing strip wider than the body strip and lying flat thereagainst and with. an adhesive applied to one ofsaid strips, means on each side for positively guiding the body stri and for simultaneously bending the si e edges of the facing strip at the edges of said body strip into a plane substantially at right angles to the plane in which said strips are guided, a pair of oppositely disposed rollers mounted to rotate on inclined axes, said rollers having substantially plane faces disposed substantially at right angles to the axes thereof, adapted to engage the edge of the facing strip and fold the same farther inwardlyand into an inwardly inclined position, said rollers having studs formed thereupon adjacent said plane faces adapted to engage the edges of the body strip, and means for forcing the side edgesofthe facing strip from the inclined position flatly down upon the body strip.

5. A machine for covering strips of paper and the like with flexible material, comprising means for coating one side of the covering material with an adhesive, means for feeding the strip and the coated, covering material together'through the machine and pressing the two sheets into close contact, a series of folding and alining rollers on each side of the path of movement of the said strip for turning the projecting edges of the covering material over the strip, a pair of oppositely arranged slides each carrying a pair of upwardly and oppositely extending arms upon which said series of rollers are mounted respectively, means for simultaneously adjusting said slides to move the rollers carried thereby toward and from each other, and a roller for pressing the folded edges of said covering material upon a face of the strip.

6. A machine for covering relatively stiff strips of paper with flexible strips, comprising the combination of a pair of tables, means for guiding the stiff paper strip and the flexible strip longitudinally over said tables with the flexible strip lying against thetable and the stiff strip superposed thereupon with an adhesive coating between said strips, a slide block at each side of the tables, and disposed below the tables, each of said blocks having a plurality of arms extending upwardly, a set of folding rollers carried by said arms at about the level of the table for bending up the projecting sideedges of the flexible strip, a pair of said rcilers disposed on o posite sides of the X ce between said tab es, means for simultaneously adjusting said blocks transversely move the said pair'of rollers in or out in id space and to vary the distance between sets of folding rollers and adapt them operate upon strips of diiferenhwidths, AEiMBSSGI rollers beyond said folding rollers for pressin the over-turned edges of the flexible stri own upon the upper side of the edges 0 the stiff strip.

7. A machine for covering relatively stiff 'the flexible strip longitudinally over said tables with the flexiblerstrip lying against the tables and the stiff strip superposed thereupon with an adhesive coating between said strips, a block at each side of the table and disposed below the tables, each of said blocks having a plurality of arms extending upwardly, a set of folding rollers carried ,by said arms for bending up the projecting side-edges of the flexible strip around and over the side-edgesof the stiff strip, an opposite pair of said rollers disposed opposite the space between said tables, means for simultaneously adjusting said blocks transversely to vary the distance between the series of folding rollers and adapt said rollers to operate upon strips of different widths, presser rollers for pressing the over-turned edges of the flexible strip down upon the upper side of the edges of the stiff strip, and a relatively narrow supporting plate lying between the tables and the presser rollers, for supporting and guiding the strips t9 said presser rollers.

8. In a machine for covering relatively stifl' strips of paper with flexible strips, comprising the combination of a pair of tables, means for guiding the stiff paper strip and the flexible strip longitudinally over said tables with the flexible strip lying against the table and the stiff strip superposed thereupon with an adhesive coating between said strips, a block at each side of the tables and disposed below the tables, each of said blocks having a plurality of arms exterdi'ng up- Wardly, a set of folding rollers carried by i said arms for bending up the projecting side-edges of the stiff strip, an opposite pair of said *rollers disposed opposite the space betweenthe said tables and the other rollers disposed beyond the said tables, means for simultaneously adjusting said blocks transversely to vary the distance between the sets of folding rollers and adapt said rollers to operate upon strips of different widths, presser ro lers beyond said folding rollers for pressing the over-turned edges of the flexible strip down upon the upper side of the edges of'the stiff strip, a relatively narrow supporting plate extending toward said tables and lying between the presser rollers and the tables, and means for engaging the strips of pa r with flexible stri s comprising the com ination of a table or supporting and means for guiding the Stlfi paper strip and the flexible strip longitudinally with the flexible strip lying against the table and the stiff strip superposed thereupon with an adhesive coating between said stri s,

a slide block at each side of the table, a fo d-" 1n and out to a low for variations in width of a strip passing through the machine, the

other of said folding rol ers on the opposite block fixed against lateral movement on its block so as to form a positive guide for one edge of the strip, and other folding rollers carried by said blocks for completing the upward bending movement of the edge of the flexible strip and for folding the same inwardly over the stiff strip, means for pressing theupper side of the stiff strip so as to hold the same down on the table while the edges'of the flexible strip are being folded thereu on, presser rollers forpressing the infol ed edges of the flexible strip down upon the upper side of the stiff strip and means for simultaneousl adjusting said blocks inwardly or outward y to adapt said folding rollers to operate upon strips of different widths.

10. machine for covering relatively flexible strip longitud with the flexible strip lying against the table stifi strips of paper with flexible strips comprising the com ination ot a table, means for guiding the stiff pager strip andthe ina over said table and the stiff strip super nosed thereupon with an adhesive coating be tween said strips, a slide block at each side of the table, a plu rollers carried "by said" blocks for engaging the edges of the flexible rality of folding strip and folding the same upwardly and inwardly over the stiff strip, a plurality of arms on said blocks carrying said folding rollers respectively, presser rollers for pressing the infolded edges of the flexible strip down upon the face of the stiff strip, means for simultaneously adjustili said blocks in and out to adapt said fol ing rollers to strips of different Widths a I plurality of cutters disposed beyond saf d presser rollers for cutting the connected strips a transverse bar, brackets carried by said bar for supporting said cutters, means for adjustmeans for adjusting the c ltters with relation to said brackets towaz-d and from the path of movement of the attached strips.

In testimony whereof I lave hereunto set my hand in presence of two subscribing witnesses.

? ably securing said brackets on said bar and I 

